[Ns-bugs] [Bug 188] global routing does not handle ip aliasing

[code@nsnam.ece.gatech.edu]

http://www.nsnam.org/bugzilla/show_bug.cgi?id=188





--- Comment #16 from Gustavo J. A. M. Carneiro <gjcarneiro at gmail.com>  2009-01-31 14:12:21 EDT ---
(In reply to comment #15)
> I've been looking at this bug again in the context of the ns-3-ip work. 
> AFAICS, there is no support in the real world for routing protocols to deal
> with IPv4 aliasing on a single net device.  Instead, how this seems to be
> universally handled is the creation of virtual devices on top of a physical
> device.  These are often called subinterfaces in routers.
[...]

If you go for this, can you think of another name than "virtual devices"? 
That's to avoid confusion with
http://code.nsnam.org/gjc/ns-3-virtual-netdevice/
Maybe "alias devices"?  Especially since I was planning to write a paper in the
next few weeks including this VirtualNetDevice (among other things, like
UMTS/Wifi integration work that my colleague is working on).

I still get the feeling think these fake devices will be a source of confusion
for people doing work on L2 stuff (like me).  We'll have to take extra care to
check whether a device is real or fake before using it...  If you do it, I
recommend to at least try to put it on a different layer, so that only layer >=
3 is affected and they do not appear in the list of Node devices
(Node::GetDevice).


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